End of the second Stage.
| 425. Detached Therm. above, at | 65° | |
| Detached Therm. when below, at | 65 | |
—— | ||
| Whole Heat | 130 | |
| Half Heat | 65. | (00 adding Cyphers) |
| Standard-Heat | 31.24 | |
—— | ||
| which deduct, and there remains | 33.76 | Degrees |
| more than the Standard-Heat, for each Barometer. | ||
Then for the Expansion of Air, with such Heat more than the Standard, consult the 4th Table: viz. with 33°.76 on Inches 6467.7, the Height of the Barometer in the Car with the Standard-Heat, thus:
426. First, with 33°, on 6467.7
| on | 6000 as 6000 = 481.1, | decimated | 481.1 |
400 as 4000 = 320.7 | 32.07 | ||
60 as 6000 = 481.1 | 4.811 | ||
7 as 7000 = 561.3 | .5613 | ||
.07 as 7000 = 561.3 | .05613 | ||
———— | |||
| Expansion = | 518.59843 | ||
427. Second, with .76 on 6467.7:
| on, as before, | 6000 = 1108. | decim. | 11.08 |
4000 = 738.7 | .7387 | ||
6000 = 1108. | .1108 | ||
7000 = 1292.7 | .012927 | ||
7000 = 1292.7 | .0012927 | ||
————— | |||
Expansion = | 11.9437197 | ||
Add the former | 518.59843 | ||
————— | |||
Total Expansion = | 530.5|542197 | ||
| viz. Height by Expansion in Feet, with more than the Standard-Heat, add to Height in Feet at the Standard-Heat | 6467.7 | |
| 428. The true Height, in Feet and Tenths, of the Barometer in the Car | 6998.2 | |
| Feet in a Yard 3) | ——— | |
| Yards in a Mile 1760) | 2332.2 | Feet. |
| 1760 | (1 Mile. | |
| ——— | ||
| Yards in a Quarter of a Mile 440) | 572 | (1 Qr. |
| 440 | ||
| —— | ||
| 32 | Yards. |
The Height of the Balloon 1 Mile, 1 Quarter, 32 Yards, and 2 Feet.
End of the last Stage,
and of the Mensuration of Heights.